/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:02:02,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:02:02,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:02:02,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 21:02:02,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 21:02:02,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 21:02:02,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 21:02:02,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 21:02:02,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 21:02:02,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 21:02:02,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 21:02:02,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 21:02:02,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:02:02,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:02:02,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:02:02,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:02:02,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:02:02,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:02:02,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:02:02,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:02:02,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:02:02,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:02:02,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:02:02,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:02:02,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 21:02:02,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 21:02:02,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 21:02:02,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 21:02:02,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 21:02:02,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 21:02:02,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 21:02:02,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 21:02:02,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 21:02:02,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 21:02:02,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 21:02:02,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 21:02:02,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 21:02:02,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 21:02:02,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:02:02,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:02:02,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:02:02,969 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 21:02:02,991 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:02:02,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:02:02,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:02:02,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:02:02,993 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:02:02,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:02:02,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:02:02,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:02:02,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:02:02,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:02:02,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:02:02,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:02:02,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:02:02,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:02:02,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:02:02,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:02:02,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:02:02,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:02:02,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:02:02,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:02:02,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:02:02,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:02:02,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:02:02,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:02:02,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:02:02,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:02:02,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:02:02,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:02:02,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:02:02,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; [2020-08-18 21:02:03,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:02:03,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:02:03,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:02:03,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:02:03,342 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:02:03,343 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-08-18 21:02:03,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cde8786e/5a99a018f2f44832a3f050ee88e9c7f1/FLAG99df2d67d [2020-08-18 21:02:03,932 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:02:03,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product52.cil.c [2020-08-18 21:02:03,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cde8786e/5a99a018f2f44832a3f050ee88e9c7f1/FLAG99df2d67d [2020-08-18 21:02:04,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8cde8786e/5a99a018f2f44832a3f050ee88e9c7f1 [2020-08-18 21:02:04,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:02:04,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:02:04,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:02:04,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:02:04,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:02:04,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:04,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7225e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04, skipping insertion in model container [2020-08-18 21:02:04,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:04,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:02:04,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:02:04,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:02:04,847 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:02:04,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:02:04,980 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:02:04,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04 WrapperNode [2020-08-18 21:02:04,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:02:04,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:02:04,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:02:04,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:02:04,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:04,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... [2020-08-18 21:02:05,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:02:05,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:02:05,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:02:05,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:02:05,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:02:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:02:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:02:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 21:02:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 21:02:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 21:02:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 21:02:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 21:02:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 21:02:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 21:02:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 21:02:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 21:02:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 21:02:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 21:02:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:02:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 21:02:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-08-18 21:02:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-08-18 21:02:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-08-18 21:02:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 21:02:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 21:02:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 21:02:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 21:02:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 21:02:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 21:02:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 21:02:05,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-18 21:02:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 21:02:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 21:02:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 21:02:05,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 21:02:05,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-18 21:02:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 21:02:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 21:02:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 21:02:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 21:02:05,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 21:02:05,159 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 21:02:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:02:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 21:02:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 21:02:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 21:02:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 21:02:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 21:02:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 21:02:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 21:02:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 21:02:05,164 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 21:02:05,165 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 21:02:05,166 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-18 21:02:05,167 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 21:02:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 21:02:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:02:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 21:02:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:02:06,270 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:02:06,271 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 21:02:06,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:02:06 BoogieIcfgContainer [2020-08-18 21:02:06,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:02:06,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:02:06,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:02:06,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:02:06,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:02:04" (1/3) ... [2020-08-18 21:02:06,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c931d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:02:06, skipping insertion in model container [2020-08-18 21:02:06,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:02:04" (2/3) ... [2020-08-18 21:02:06,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c931d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:02:06, skipping insertion in model container [2020-08-18 21:02:06,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:02:06" (3/3) ... [2020-08-18 21:02:06,285 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2020-08-18 21:02:06,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:02:06,304 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:02:06,319 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:02:06,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:02:06,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:02:06,345 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:02:06,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:02:06,346 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:02:06,346 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:02:06,346 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:02:06,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:02:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-08-18 21:02:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-08-18 21:02:06,379 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:06,381 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:06,381 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:06,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:06,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1089631799, now seen corresponding path program 1 times [2020-08-18 21:02:06,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:06,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280970571] [2020-08-18 21:02:06,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,085 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:07,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:02:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 21:02:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 21:02:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:07,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280970571] [2020-08-18 21:02:07,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:07,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:02:07,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004387705] [2020-08-18 21:02:07,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 21:02:07,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:07,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 21:02:07,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:02:07,271 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 4 states. [2020-08-18 21:02:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:08,440 INFO L93 Difference]: Finished difference Result 328 states and 422 transitions. [2020-08-18 21:02:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 21:02:08,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-08-18 21:02:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:08,457 INFO L225 Difference]: With dead ends: 328 [2020-08-18 21:02:08,457 INFO L226 Difference]: Without dead ends: 181 [2020-08-18 21:02:08,463 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:02:08,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-08-18 21:02:08,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 148. [2020-08-18 21:02:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-08-18 21:02:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 174 transitions. [2020-08-18 21:02:08,556 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 174 transitions. Word has length 59 [2020-08-18 21:02:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:08,556 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 174 transitions. [2020-08-18 21:02:08,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 21:02:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 174 transitions. [2020-08-18 21:02:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-18 21:02:08,561 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:08,561 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:08,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:02:08,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:08,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:08,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1975382983, now seen corresponding path program 1 times [2020-08-18 21:02:08,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:08,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569880064] [2020-08-18 21:02:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,916 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:08,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 21:02:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 21:02:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-18 21:02:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:08,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569880064] [2020-08-18 21:02:08,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:08,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 21:02:08,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470365767] [2020-08-18 21:02:08,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 21:02:08,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:08,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 21:02:08,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:02:08,979 INFO L87 Difference]: Start difference. First operand 148 states and 174 transitions. Second operand 5 states. [2020-08-18 21:02:09,451 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:10,357 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2020-08-18 21:02:10,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 21:02:10,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-08-18 21:02:10,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:10,361 INFO L225 Difference]: With dead ends: 263 [2020-08-18 21:02:10,361 INFO L226 Difference]: Without dead ends: 171 [2020-08-18 21:02:10,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:02:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-08-18 21:02:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 139. [2020-08-18 21:02:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-08-18 21:02:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 162 transitions. [2020-08-18 21:02:10,435 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 162 transitions. Word has length 60 [2020-08-18 21:02:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:10,435 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 162 transitions. [2020-08-18 21:02:10,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 21:02:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 162 transitions. [2020-08-18 21:02:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 21:02:10,445 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:10,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:10,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:02:10,446 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:10,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1007889166, now seen corresponding path program 1 times [2020-08-18 21:02:10,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:10,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882138907] [2020-08-18 21:02:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,768 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:10,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 21:02:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 21:02:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:10,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882138907] [2020-08-18 21:02:10,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:10,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 21:02:10,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804466646] [2020-08-18 21:02:10,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:02:10,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:10,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:02:10,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:02:10,906 INFO L87 Difference]: Start difference. First operand 139 states and 162 transitions. Second operand 9 states. [2020-08-18 21:02:11,312 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:11,620 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:11,869 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:12,110 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:13,010 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:14,779 INFO L93 Difference]: Finished difference Result 466 states and 577 transitions. [2020-08-18 21:02:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 21:02:14,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-08-18 21:02:14,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:14,789 INFO L225 Difference]: With dead ends: 466 [2020-08-18 21:02:14,789 INFO L226 Difference]: Without dead ends: 355 [2020-08-18 21:02:14,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-08-18 21:02:14,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-08-18 21:02:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 294. [2020-08-18 21:02:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-08-18 21:02:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 356 transitions. [2020-08-18 21:02:14,865 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 356 transitions. Word has length 65 [2020-08-18 21:02:14,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:14,865 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 356 transitions. [2020-08-18 21:02:14,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:02:14,866 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 356 transitions. [2020-08-18 21:02:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-18 21:02:14,867 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:14,868 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:14,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:02:14,868 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:14,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:14,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1025318737, now seen corresponding path program 1 times [2020-08-18 21:02:14,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:14,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100725820] [2020-08-18 21:02:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,166 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 21:02:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 21:02:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 21:02:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-18 21:02:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:15,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 21:02:15,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100725820] [2020-08-18 21:02:15,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:15,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 21:02:15,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519950189] [2020-08-18 21:02:15,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:02:15,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:15,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:02:15,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:02:15,299 INFO L87 Difference]: Start difference. First operand 294 states and 356 transitions. Second operand 9 states. [2020-08-18 21:02:15,710 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:16,458 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:17,271 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:17,569 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:17,814 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:18,059 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:18,914 INFO L93 Difference]: Finished difference Result 755 states and 986 transitions. [2020-08-18 21:02:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 21:02:18,915 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2020-08-18 21:02:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:18,921 INFO L225 Difference]: With dead ends: 755 [2020-08-18 21:02:18,921 INFO L226 Difference]: Without dead ends: 489 [2020-08-18 21:02:18,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 21:02:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-08-18 21:02:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 421. [2020-08-18 21:02:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-18 21:02:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 507 transitions. [2020-08-18 21:02:19,042 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 507 transitions. Word has length 70 [2020-08-18 21:02:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:19,044 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 507 transitions. [2020-08-18 21:02:19,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:02:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 507 transitions. [2020-08-18 21:02:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-18 21:02:19,049 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:19,049 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:19,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:02:19,050 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:19,050 INFO L82 PathProgramCache]: Analyzing trace with hash -2085443903, now seen corresponding path program 1 times [2020-08-18 21:02:19,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:19,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307733953] [2020-08-18 21:02:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,384 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:19,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 21:02:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 21:02:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 21:02:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:19,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307733953] [2020-08-18 21:02:19,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:19,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 21:02:19,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393786457] [2020-08-18 21:02:19,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:02:19,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:19,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:02:19,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:02:19,566 INFO L87 Difference]: Start difference. First operand 421 states and 507 transitions. Second operand 9 states. [2020-08-18 21:02:20,683 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:20,924 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 21:02:21,175 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:21,409 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:22,229 INFO L93 Difference]: Finished difference Result 903 states and 1149 transitions. [2020-08-18 21:02:22,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:02:22,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-08-18 21:02:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:22,235 INFO L225 Difference]: With dead ends: 903 [2020-08-18 21:02:22,235 INFO L226 Difference]: Without dead ends: 510 [2020-08-18 21:02:22,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-18 21:02:22,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-08-18 21:02:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 434. [2020-08-18 21:02:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-08-18 21:02:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 521 transitions. [2020-08-18 21:02:22,341 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 521 transitions. Word has length 93 [2020-08-18 21:02:22,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:22,342 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 521 transitions. [2020-08-18 21:02:22,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:02:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 521 transitions. [2020-08-18 21:02:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-18 21:02:22,345 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:22,346 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:22,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:02:22,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:22,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:22,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1383844029, now seen corresponding path program 1 times [2020-08-18 21:02:22,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:22,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184479320] [2020-08-18 21:02:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,608 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:22,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 21:02:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 21:02:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 21:02:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:22,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184479320] [2020-08-18 21:02:22,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:22,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 21:02:22,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670954944] [2020-08-18 21:02:22,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 21:02:22,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:22,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 21:02:22,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:02:22,761 INFO L87 Difference]: Start difference. First operand 434 states and 521 transitions. Second operand 11 states. [2020-08-18 21:02:23,336 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:23,605 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:23,840 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:24,620 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:24,889 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:25,158 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:26,055 INFO L93 Difference]: Finished difference Result 930 states and 1198 transitions. [2020-08-18 21:02:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 21:02:26,056 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-08-18 21:02:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:26,060 INFO L225 Difference]: With dead ends: 930 [2020-08-18 21:02:26,060 INFO L226 Difference]: Without dead ends: 524 [2020-08-18 21:02:26,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 21:02:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-08-18 21:02:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 442. [2020-08-18 21:02:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-08-18 21:02:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 529 transitions. [2020-08-18 21:02:26,151 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 529 transitions. Word has length 93 [2020-08-18 21:02:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:26,151 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 529 transitions. [2020-08-18 21:02:26,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 21:02:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 529 transitions. [2020-08-18 21:02:26,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-08-18 21:02:26,153 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:26,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:26,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:02:26,154 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:26,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:26,154 INFO L82 PathProgramCache]: Analyzing trace with hash 341636868, now seen corresponding path program 1 times [2020-08-18 21:02:26,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:26,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077865507] [2020-08-18 21:02:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,418 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:26,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 21:02:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 21:02:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-18 21:02:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:26,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077865507] [2020-08-18 21:02:26,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:26,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 21:02:26,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572578209] [2020-08-18 21:02:26,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:02:26,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:26,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:02:26,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:02:26,607 INFO L87 Difference]: Start difference. First operand 442 states and 529 transitions. Second operand 7 states. [2020-08-18 21:02:26,984 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:27,483 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:29,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:29,646 INFO L93 Difference]: Finished difference Result 1411 states and 1828 transitions. [2020-08-18 21:02:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 21:02:29,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2020-08-18 21:02:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:29,657 INFO L225 Difference]: With dead ends: 1411 [2020-08-18 21:02:29,658 INFO L226 Difference]: Without dead ends: 997 [2020-08-18 21:02:29,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-08-18 21:02:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2020-08-18 21:02:29,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 919. [2020-08-18 21:02:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-08-18 21:02:29,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1115 transitions. [2020-08-18 21:02:29,886 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1115 transitions. Word has length 93 [2020-08-18 21:02:29,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:29,886 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1115 transitions. [2020-08-18 21:02:29,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:02:29,886 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1115 transitions. [2020-08-18 21:02:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-08-18 21:02:29,890 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:29,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:29,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 21:02:29,890 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:29,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:29,891 INFO L82 PathProgramCache]: Analyzing trace with hash -643321942, now seen corresponding path program 1 times [2020-08-18 21:02:29,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:29,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874103952] [2020-08-18 21:02:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,265 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:30,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:02:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 21:02:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-18 21:02:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 21:02:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-18 21:02:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-18 21:02:30,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874103952] [2020-08-18 21:02:30,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:02:30,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 21:02:30,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828274872] [2020-08-18 21:02:30,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 21:02:30,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 21:02:30,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-18 21:02:30,434 INFO L87 Difference]: Start difference. First operand 919 states and 1115 transitions. Second operand 12 states. [2020-08-18 21:02:31,237 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:31,885 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:32,594 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:32,921 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:33,171 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:33,518 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:33,796 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:35,845 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:36,129 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:36,667 INFO L93 Difference]: Finished difference Result 2611 states and 3380 transitions. [2020-08-18 21:02:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-18 21:02:36,667 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-08-18 21:02:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:36,678 INFO L225 Difference]: With dead ends: 2611 [2020-08-18 21:02:36,679 INFO L226 Difference]: Without dead ends: 1912 [2020-08-18 21:02:36,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2020-08-18 21:02:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2020-08-18 21:02:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1606. [2020-08-18 21:02:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-08-18 21:02:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1936 transitions. [2020-08-18 21:02:36,969 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1936 transitions. Word has length 97 [2020-08-18 21:02:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:36,973 INFO L479 AbstractCegarLoop]: Abstraction has 1606 states and 1936 transitions. [2020-08-18 21:02:36,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 21:02:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1936 transitions. [2020-08-18 21:02:36,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-08-18 21:02:36,979 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:36,980 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:36,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 21:02:36,980 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:36,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:36,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1477147143, now seen corresponding path program 1 times [2020-08-18 21:02:36,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:36,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954481346] [2020-08-18 21:02:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,374 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:37,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:02:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 21:02:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 21:02:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-18 21:02:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-08-18 21:02:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-18 21:02:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:02:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-18 21:02:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-18 21:02:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-18 21:02:37,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954481346] [2020-08-18 21:02:37,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:02:37,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 21:02:37,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092606055] [2020-08-18 21:02:37,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 21:02:37,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 21:02:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-08-18 21:02:37,667 INFO L87 Difference]: Start difference. First operand 1606 states and 1936 transitions. Second operand 16 states. [2020-08-18 21:02:38,319 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:38,645 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 21:02:38,901 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 21:02:39,145 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-08-18 21:02:39,832 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:40,117 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:40,465 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 21:02:40,746 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 21:02:41,869 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:42,566 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:42,856 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:43,186 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:43,770 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:44,180 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:44,570 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 21:02:45,330 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:45,635 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-18 21:02:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:46,460 INFO L93 Difference]: Finished difference Result 3483 states and 4326 transitions. [2020-08-18 21:02:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-18 21:02:46,461 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 159 [2020-08-18 21:02:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:46,473 INFO L225 Difference]: With dead ends: 3483 [2020-08-18 21:02:46,473 INFO L226 Difference]: Without dead ends: 2085 [2020-08-18 21:02:46,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=589, Invalid=2167, Unknown=0, NotChecked=0, Total=2756 [2020-08-18 21:02:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-08-18 21:02:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 1893. [2020-08-18 21:02:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2020-08-18 21:02:46,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2238 transitions. [2020-08-18 21:02:46,882 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2238 transitions. Word has length 159 [2020-08-18 21:02:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:46,883 INFO L479 AbstractCegarLoop]: Abstraction has 1893 states and 2238 transitions. [2020-08-18 21:02:46,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 21:02:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2238 transitions. [2020-08-18 21:02:46,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-08-18 21:02:46,895 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:46,898 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:46,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 21:02:46,899 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:46,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:46,899 INFO L82 PathProgramCache]: Analyzing trace with hash 430621663, now seen corresponding path program 1 times [2020-08-18 21:02:46,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:46,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458723295] [2020-08-18 21:02:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,213 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:47,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:02:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 21:02:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 21:02:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 21:02:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:02:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:02:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 21:02:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-18 21:02:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:02:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:02:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 21:02:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-18 21:02:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-08-18 21:02:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-08-18 21:02:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-18 21:02:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:47,735 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 83 proven. 29 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-08-18 21:02:47,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458723295] [2020-08-18 21:02:47,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:02:47,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-18 21:02:47,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839779164] [2020-08-18 21:02:47,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-18 21:02:47,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:47,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-18 21:02:47,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-08-18 21:02:47,738 INFO L87 Difference]: Start difference. First operand 1893 states and 2238 transitions. Second operand 15 states. [2020-08-18 21:02:49,209 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-18 21:02:49,482 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:49,735 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:49,980 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:51,012 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:02:52,848 INFO L93 Difference]: Finished difference Result 5185 states and 6381 transitions. [2020-08-18 21:02:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-18 21:02:52,853 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 277 [2020-08-18 21:02:52,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:02:52,871 INFO L225 Difference]: With dead ends: 5185 [2020-08-18 21:02:52,871 INFO L226 Difference]: Without dead ends: 3002 [2020-08-18 21:02:52,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2020-08-18 21:02:52,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2020-08-18 21:02:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2604. [2020-08-18 21:02:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2604 states. [2020-08-18 21:02:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 3157 transitions. [2020-08-18 21:02:53,489 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 3157 transitions. Word has length 277 [2020-08-18 21:02:53,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:02:53,490 INFO L479 AbstractCegarLoop]: Abstraction has 2604 states and 3157 transitions. [2020-08-18 21:02:53,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-18 21:02:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 3157 transitions. [2020-08-18 21:02:53,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-08-18 21:02:53,502 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:02:53,502 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:02:53,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 21:02:53,503 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:02:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:02:53,503 INFO L82 PathProgramCache]: Analyzing trace with hash 154824420, now seen corresponding path program 1 times [2020-08-18 21:02:53,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:02:53,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765715144] [2020-08-18 21:02:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:02:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,834 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:02:53,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:02:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:02:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:02:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:02:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:02:53,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 21:02:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 21:02:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:02:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 21:02:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:53,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:02:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:02:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 21:02:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 21:02:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-18 21:02:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:02:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:02:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:02:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 21:02:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-08-18 21:02:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:02:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-08-18 21:02:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:02:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:02:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:02:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-18 21:02:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2020-08-18 21:02:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:02:54,204 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 90 proven. 36 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-08-18 21:02:54,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765715144] [2020-08-18 21:02:54,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 21:02:54,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 21:02:54,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039352643] [2020-08-18 21:02:54,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 21:02:54,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:02:54,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 21:02:54,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-08-18 21:02:54,212 INFO L87 Difference]: Start difference. First operand 2604 states and 3157 transitions. Second operand 16 states. [2020-08-18 21:02:54,744 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:55,099 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:55,343 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:55,579 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-18 21:02:56,265 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:57,273 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-18 21:02:57,599 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:57,904 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:58,540 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:59,353 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:02:59,617 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:03:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:03:00,842 INFO L93 Difference]: Finished difference Result 4984 states and 6131 transitions. [2020-08-18 21:03:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 21:03:00,843 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 283 [2020-08-18 21:03:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:03:00,860 INFO L225 Difference]: With dead ends: 4984 [2020-08-18 21:03:00,861 INFO L226 Difference]: Without dead ends: 2611 [2020-08-18 21:03:00,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2020-08-18 21:03:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-08-18 21:03:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2535. [2020-08-18 21:03:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2535 states. [2020-08-18 21:03:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3048 transitions. [2020-08-18 21:03:01,326 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3048 transitions. Word has length 283 [2020-08-18 21:03:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:03:01,327 INFO L479 AbstractCegarLoop]: Abstraction has 2535 states and 3048 transitions. [2020-08-18 21:03:01,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 21:03:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3048 transitions. [2020-08-18 21:03:01,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-08-18 21:03:01,338 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:03:01,338 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:03:01,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 21:03:01,339 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:03:01,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:03:01,339 INFO L82 PathProgramCache]: Analyzing trace with hash -344117058, now seen corresponding path program 1 times [2020-08-18 21:03:01,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:03:01,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159637821] [2020-08-18 21:03:01,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:03:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,643 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:03:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:03:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:03:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:03:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:03:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 21:03:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:03:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 21:03:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 21:03:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:03:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:03:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:03:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:03:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:03:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:03:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-08-18 21:03:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:03:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:03:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:03:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:03:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 21:03:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:03:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 21:03:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:03:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 21:03:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-08-18 21:03:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:03:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:03:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 21:03:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:03:01,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:03:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat